一般块体方法理论解验证  

Theoretical validation on general block method

作　　者：张莉丽[1] 于青春[1] 

机构地区：[1]中国地质大学水资源与环境学院,北京100083

出　　处：《水文地质工程地质》2010年第6期55-60,70,共7页Hydrogeology & Engineering Geology

基　　金：裂隙岩体一般块体理论及应用研究(40372134)

摘　　要：裂隙岩体一般块体方法能够解决任意大小裂隙、任意形状工程岩体的岩石块体识别及稳定性计算问题。它在块体识别的过程中,将复杂的块体分解为若干个简单的凸形块体,从而使复杂块体的一系列问题大大简化。边坡和地下硐室是野外最常见的岩体建筑物,本文分别选择了一个边坡和一个地下硐室,从块体识别、块体规模、下滑力、摩擦力、粘滞力、稳定性系数等角度对该方法进行了验证。通过解析的方法求得上述两种模型中各个物理量的解,然后把求得的这些解析解与一般块体算法和程序的求解结果进行了比较。结果表明,一般块体方法的算法与程序是正确的。General block method is a numerical procedure for the identification and stability assessment of rock blocks formed by finite-sized fractures and arbitrary-shaped rock mass.The rock mass of study region may be partitioned into a finite number of sub-regions,and each sub-region is,or can be approximated with,a convex poledron.Detail theoretical validation is carried out in this paper.This is realized through solving the same problems with general block method and theoretical method,and comparing their results.Two models,including a slope model and an underground cavern model,are calculated with theoretical method and general block method.Their results,including the volume,weight,sliding face,sliding force,friction and safety coefficient of all the blocks in the two models,are compared.The results show that general block method is correct.

关 键 词：一般块体方法 块体识别 理论解验证 

分 类 号：TU457[建筑科学—岩土工程]